Hi Debbie,
Thanks for posting about this issue - it certainly crops up from time to time and is a great way to start the conversation on complementary medicines.
The Cancer Council has a great website called iHeard, where people can submit claims they have heard about cancer and its treatments, and the Cancer Council posts a response to let you know whether the claim is 'fact or fiction', based on the most up-to-date clinical evidence (or lack of).
I popped 'apricot' into the search field, and found that in fact, there is no evidence to support the use of apricots in curing cancer or stopping it from coming back. The explanation summarises the theory behind the myth, and the lack of research which I found quite interesting.
I couldn't find anything on hemp oil, so perhaps it's a good opportunity for you to ask the question, and see what they come back with? I'd be very interested to learn about hemp oil also.
~ Annie